81249808

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{47459}}^1$

素因数の和:47574

約数の個数: 20

約数和(自身を含む): 158896080

約数和(自身を除く): 77646272

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 47459, 94918, 189836, 379672, 759344, 5078113, 10156226, 20312452, 40624904, 81249808]

約数ペア:

[(1, 81249808), (2, 40624904), (4, 20312452), (8, 10156226), (16, 5078113), (107, 759344), (214, 379672), (428, 189836), (856, 94918), (1712, 47459)]